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US 11,706,072 B2Granted
Apparatus and method for filtering a bit stream and providing guard bands
AssigneeSony Group Corporation
InventorsHiroki Matsuda, Ryota Kimura, Kazuyuki Shimezawa
Life of this patent
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Abstract
An apparatus including: a communication unit configured to perform radio communication; and a control unit configured to perform control such that control information regarding a resource to which a filter for limiting a width of a guard band in a frequency band to be used in the radio communication is applied is transmitted to an external apparatus through the radio communication. The filter improves frequency use efficiency.
Claims20
An apparatus comprising:
- circuitry configured to
- perform radio communication;
- transmit to an external apparatus through the radio communication control information regarding a resource to be used in the radio communication:
- select a filter application unit from a plurality of candidates, wherein each of the plurality of candidates comprises a subcarrier bandwidth and a symbol length, and the filter application unit represents a minimum time-frequency unit to which a filter is applied;
- divide a bit stream into a plurality of units, each of the plurality of units having a size of the selected filter application unit;
- apply the filter to each of the plurality of units to generate a plurality of filtered units;
- and
- add the plurality of filtered units to generate a signal for transmission,
- wherein the control information is transmitted to the external apparatus, and the control information is used by the external apparatus to set the width of a guard band around the signal.
6 more elements
An apparatus comprising:
- circuitry configured to
- perform radio communication;
- acquire control information regarding a resource to be used in the radio communication from an external apparatus through the radio communication;
- select a filter application unit from a plurality of candidates wherein each of the plurality of filter candidates comprises a subcarrier bandwidth and a symbol length, and the filter application unit represents a minimum time-frequency unit to which a filter is applied;
- divide a bit stream into a plurality of units, each of the plurality of units having a size of the selected filter application unit;
- apply the filter to each of the plurality of units to generate a plurality of filtered units;
- and
- add the plurality of filtered units to generate a signal for transmission,
- wherein the control information is acquired from the external apparatus, and the control information is used by the apparatus to set the width of a guard band around the signal.
6 more elements
An apparatus comprising:
- circuitry configured to
- perform radio communication;
- perform control such that, on a basis of control information regarding a resource to which a filter is applied for limiting a width of a guard band in a frequency band to be used in the radio communication, the filter is applied to transmission data and the transmission data to which the filter has been applied is transmitted to an external apparatus through the radio communication;
- divide the transmission data into a plurality of units;
- apply the filter to each of the plurality of units to generate a plurality of filtered units;
- and
- add the plurality of filtered units to generate a signal for transmission,
- wherein the filter comprises a filter application unit representing a minimum time-frequency unit to which the filter is applied,
- wherein the control information is received from the external apparatus, and the control information is used by the apparatus to set the width of the guard band around the signal,
- wherein the filter application unit is selected by the external apparatus from a plurality of candidates based on information received from the apparatus, and
- wherein the plurality of candidates are stored in a memory and each of the plurality of candidates comprises a subcarrier bandwidth and a symbol length.
8 more elements
A method comprising:
- performing radio communication;
- acquiring, by a processor, control information regarding a resource to be used in the radio communication from an external apparatus through the radio communication;
- selecting a filter application unit from a plurality of candidates, wherein each of the plurality of candidates comprises a subcarrier bandwidth and a symbol length, and the filter application unit represents a minimum time-frequency unit to which a filter is applied;
- dividing a bit stream into a plurality of units, each of the plurality of units having a size of the selected filter application unit;
- applying the filter to each of the plurality of units to generate a plurality of filtered units;
- and
- adding the plurality of filtered units to generate a signal for transmission,
- wherein the control information is transmitted to the external apparatus as part of a Radio Resource Control (RRC) signaling, and the control information is used by the external apparatus to set the width of a guard band around the signal.
5 more elements
Dependencies are inferred from the claim text.